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Certificate
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PLA air filter material
Category:
Process: electret Weight: 30g or 40g Test flow: 32L/min Medium: salt PFE：90+/95+/99+ BFE：99+ Resistance: less than 35Pa/45Pa Remarks: The weight and resistance can be customized according to special requirements
Product Description
National standard reference of filter material
Classification of filters for general ventilation - atmospheric dust counting method
| GB12218-89 Classification | I | II | III |
| Number of grains（ μ m） | ≥5.0 | ≥1.0 | |
| Counting efficiency (%) | <40 | 40≤E<80 | 40≤E<80 |
| GB/T14295-93 Classification | Rough number | Medium efficiency | |
| Number of grains（ μ m） | ≥5.0 | ≥1.0 | |
| Counting efficiency (%) | 20≤E<80 | 20≤E<80 |
European standard reference for filter material
Current edition in Europe
| standard | EN779:1993 | EN1882-1:1998 | |
| specification | E<65 |
Colorimetry or counting method (%) Dust-spot Or Particle |
The most penetrating particle size method (%) MPPS |
| G1 | 65≤E<80 | ||
| G2 | 80≤E<90 | ||
| G3 | 90≤E | ||
| G4 | |||
| F5 | 40≤E<60 | ||
| F6 | 60≤E<80 | ||
| F7 | 80≤E<90 | ||
| F8 | 90≤E<95 | ||
| F9 | 95≤E | ||
| H10 | 85≤E<95 | ||
| H11 | 95≤E<99.5 | ||
| H12 | 99.5≤E<99.95 | ||
| H13 | 99.95≤E<99.995 | ||
| H14 | 99.995≤E<99.9995 | ||
| U15 | 99.9995≤E<99.99995 | ||
| U16 | 99.99995≤E<99.999995 | ||
| U17 | 99.999995≤E |
|
rank |
technology |
Gram weight |
PFE |
Test flow |
medium |
obstruction |
remarks |
|
H10 |
Electret |
20-30 g |
85-95 |
32L/min |
salt |
Less than 25Pa |
Weight and resistance can be customized according to special requirements |
|
H11 |
Electret |
20-30 g |
95-99.5 |
32L/min |
salt |
＜30Pa |
|
|
H12 |
Water electret |
20-30 g |
99.5-99.95 |
32L/min |
salt |
＜20Pa |
|
|
H13 |
Water electret |
20-30 g |
99.95-99.995 |
32L/min |
salt |
＜25Pa |
|
|
H14 |
Water electret |
20-30 g |
99.995-99.9995 |
32L/min |
salt |
Less than 35Pa |
|
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